Matches in Library of Congress for { ?s ?p c1981-. }
- 81150573 dateCopyrighted "c1981-".
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- 81168640 dateCopyrighted "c1981-".
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- 81178040 dateCopyrighted "c1981-".
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- 81198467 dateCopyrighted "c1981-".
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- 81200831 dateCopyrighted "c1981-".
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- 81213612 dateCopyrighted "c1981-".
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- 82114524 dateCopyrighted "c1981-".
- 82117990 dateCopyrighted "c1981-".
- 82118003%2F%2Fr87 dateCopyrighted "c1981-".
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- 82132130 dateCopyrighted "c1981-".